Sound 1
Sound needs _____ to travel
medium
True/False: Sound always travels at the same speed?
A whistle has a ______ pitch
high
no medium/matter to travel
How sounds travel from one location to another.
sound waves
A tuba has _________ pitch.
Low
Sounds with many vibrations per second have ___________ .
High pitch
What type of materials absorb sound the best?
soft materials
Volume is the ________
highness or lowness of a sound
An echo is created through sound...
reflecting
The fewer the vibrations, the ____ pitch
Lower
High frequency = many ________
vibrations
When we talk, sound travels through this.
Air
The lower the frequency, the _____ pitch
lower
Sound is created through....
vibrations
Volume is measure in?
decibels (dB)
The three types of matter sound travels through
Solid, Liquid, Gas
Why do echos only occur with a hard surface
soft surfaces absorb sound and hard surfaces reflect sound